Use the starter they will go 350# then at 900 rpm they should be 500 ,I have friend with N/A 8v71 in a Eagle that Diesel Exchange installed for him the best it would ever do is 450# on any cylinder it was a bear to start in cold weather but ran good with normal power come to find out they used 17:1 pistons

Well...as usual...life happens...compression test kit shows up...pouring rain and I cant work on the busCant wait for this weekend.

FWIW my experience starting is50 deg or higher and the bus starts right up (3 or 4 seconds on starter) especially if it was run the last day...rough idles for 10 seconds then smooths out40 and it is usually 3 reps of 6-10 seconds...rough idles for a minute then smooth

PO said he has had only straight 40 for oil and convinced me the same...only straight 40

Dave there is a solution for working on buses outside in the rain, snow, extreme sun/heat.

I use an "EZ Up" Awning. I use it here outside the shop, & I take it with me on road service calls. Just put it up next to the bus where your going to be working and walla you have a "carport" to work under. They don't cost that much and fold up nicely for storage and can be used for other uses too! I think that EVERY BUSNUT should have one. BK

Compression was jumping around 300 - 330 with engine warmish (~160) and at fast idlebut...I found the injector wasnt really seated good - reseated and got a solid 480 - engine was cooling though - thinking cooler engine will get higher compression (is this logical?)the compression gauge is filled with a thick fluid slowing its descent and letting me get a reading - not as nice as the ones with a "max reading" dial but workable.

I want to test it again as I broke rule 1 - Dont be in a hurry (visiting friends from out of town) and I think I can get the cover off faster now with a 12 point socket (was previously using a wrench - took forever to remove rocker covers).

here is the adapter pic -

So I checked the airboxes - no more parts showing up in there - scoped the cylinder again - still clean

installed new injector and reassembled - no more smoke and a whole lot more powerhapilly moving down the road to tulsa OK - any busnuts in/around Tulsa?

one issue I have is the tach reading - I dont have a tachometerim not sure what my fast idle is set to eitherbut I assume with the compression reading I have in that hole I dont have valve issuesbus is running remarkably well

I will temp gun the exhaust to see if those readings are the same on each pair of cylinders after my run tomorrowother than the new injector I didnt adjust the injector rocker as they all checked at 1.460

it does have an adapter that is shaped like a v71 injector - followed BK's advice on WORK FAST (note don't burn the #*&$ out of your arms on the exhaust).THAT WOULD HAVE BEEN CHOPPED LIVER'S <----who would be me>WORDS OF ENCOURAGEMENT, BK SUGGESTED YOU TO BUY A TENT.

were i you..1 startup and get engine up to temp...drive it around till 180 deg2 shutdownWORK FAST

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Quote from: eagle19952

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